Journal
INTERNATIONAL JOURNAL OF BUILDING PATHOLOGY AND ADAPTATION
Volume 41, Issue 3, Pages 647-674Publisher
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/IJBPA-03-2022-0053
Keywords
Building pathology; 3D printing; Rehabilitation; Cultural heritage; Mortars; Building materials
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This paper aims to bridge the benefits of 3D printing with the rehabilitation of cultural heritage buildings. It discusses the potential of using 3D printing and scanning techniques in the rehabilitation process, as well as the challenges and opportunities associated with this application. The paper also emphasizes the importance of developing compatible materials and extruders, and the integration of 3D printers with mapping tools for accurate reproduction of components.
PurposeThe paper seeks to bridge the already familiar benefits of 3D printing (3DP) to the rehabilitation of cultural heritage, still based on the use of complex and expensive handcrafted techniques and scarce materials.Design/methodology/approachA compilation of different information on frequent anomalies in cultural heritage buildings and commonly used materials is conducted; subsequently, some innovative techniques used in the construction sector (3DP and 3D scanning) are addressed, as well as some case studies related to the rehabilitation of cultural heritage building elements, leading to a reflection on the opportunities and challenges of this application within these types of buildings.FindingsThe compilation of information summarised in the paper provided a clear reflection on the great potential of 3DP for cultural heritage rehabilitation, requiring the development of new mixtures (lime mortars, for example) compatible with the existing surface and, eventually, incorporating some residues that may improve interesting properties; the design of different extruders, compatible with the new mixtures developed and the articulation of 3D printers with the available mapping tools (photogrammetry and laser scanning) to reproduce the component as accurately as possible.Originality/valueThis paper sets the path for a new application of 3DP in construction, namely in the field of cultural heritage rehabilitation, by identifying some key opportunities, challenges and for designing the process flow associated with the different technologies involved.
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